Knowing what TV you own, what phone models are used in your house, and what other devices you own tells advertisers about your spending patterns and income.

I wonder if you can identify the age of devices based just on network scans? Like if an advertiser can tell I've got a washing machine model that was last sold 7 years ago, it's time to spam me with washing machine ads.

If you are living in a flat, this could of course be your neighbour's washing machine/TV etc...

Quite probably. nmap does (or certainly used to) have options to report the OS of a given machine had based on various quirks of the packets it got back from them. It was disturbingly accurate at times. You put that together with banner messages from running services, MAC addresses, responses to broadcast packets, deliberate probing, and the number of devices you _can't_ remotely identify on a network without actually logging into them is probably very small.

It's a lot easier to create an embedding with equivalent information than to reliably identify a particular device, and that embedding is more than sufficient to enable targeting.

And can be used to cross-correlate with other datasets to further narrow down who you are and how you can be targetted.

I love that a poor, stupid man like me is being targeted by teams of the smartest data analytics professionals on the planet.

Makes me think of DraftKings. You take your average 20 something sports fan - drinking beer, watching the game. And, on the other end of that smartphone display exist some of the most complex algorithms ever designed by teams of mathematics / statistics PhDs and it's deliberately built around targeting... this one guy from Florida who is pretty sure his team will be up by 7 at halftime.

Maybe it's more of a morbid joke, but it makes me laugh to think about.

The way you explain it really captures how predatory the behavior is.

It's an accurate explanation.

My income is low. Ignore me, advertisers, you have no power here.